198
FNCA52 TJSJ 010643
FWFSJU
FIRE WEATHER PLANNING FORECAST FOR PUERTO RICO
NATIONAL WEATHER SERVICE SAN JUAN PR
243 AM AST SUN MAR 1 2026
DISCUSSION
THE KBDI REMAINS ABOVE CRITICAL FIRE WEATHER THRESHOLDS IN CABO
ROJO, AND ABOVE CRITICAL VALUES IN GUANICA AND CAMP SANTIAGO.
TODAY, THE BREEZY CONDITIONS WILL CONTINUE, AND WINDS SPEEDS WILL
RANGE BETWEEN BETWEEN 13 AND 25 MPH AT TIMES, WITH STRONGER GUSTS
DUE TO THE SEA BREEZE. ALTHOUGH RH VALUES AND WINDS WILL REACH
CRITICAL LEVELS AT TIMES, THE AVAILABLE MOISTURE WILL MAINTAIN A
LOW TO BRIEF MODERATE FIRE DANGER RISK.
PRZ014-020645-
SOUTHEAST COASTAL PLAINS-
243 AM AST SUN MAR 1 2026
TODAY TONIGHT MON
CLOUD COVER CLEAR MCLEAR PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 10 20 60
TEMP (24H TREND) 87 (+3) 69 (-2) 87
RH % (24H TREND) 51 (-8) 92 (+2) 57
WIND 20FT/EARLY(MPH) E 20 G26 E 16 G20 E 17 G23
WIND 20FT/LATE(MPH) E 20 G26 E 16 G20 E 17 G23
MIXING HGT(FT-AGL/MSL)5650 5310
TRANSPORT WND (MPH) E 25 E 21
VENT RATE (KT-FT) 124300 95580
DISPERSION 5 5
DSI 6 4 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ015-020645-
SOUTHERN HILLS-
243 AM AST SUN MAR 1 2026
TODAY TONIGHT MON
CLOUD COVER CLEAR MCLEAR PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 10 10 60
TEMP (24H TREND) 83 (+3) 65 (-3) 83
RH % (24H TREND) 55 (-8) 96 (+4) 61
WIND 20FT/EARLY(MPH) E 16 G18 E 12 E 13
WIND 20FT/LATE(MPH) E 16 G18 E 12 E 13
MIXING HGT(FT-AGL/MSL)6270 5920
TRANSPORT WND (MPH) E 24 E 20
VENT RATE (KT-FT) 131670 100640
DISPERSION 5 5
DSI 6 3 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ016-020645-
NORTH COASTAL PLAINS-
243 AM AST SUN MAR 1 2026
TODAY TONIGHT MON
CLOUD COVER MCLEAR PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 10 30 30
TEMP (24H TREND) 87 (+1) 68 (-2) 86
RH % (24H TREND) 51 (-4) 99 (+6) 59
WIND 20FT/EARLY(MPH) E 18 G22 E 13 E 17 G19
WIND 20FT/LATE(MPH) E 18 G22 E 13 E 17 G19
MIXING HGT(FT-AGL/MSL)6920 5720
TRANSPORT WND (MPH) SE 23 E 18
VENT RATE (KT-FT) 138400 91520
DISPERSION 5 5
DSI 6 5 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ017-020645-
NORTHERN HILLS-
243 AM AST SUN MAR 1 2026
TODAY TONIGHT MON
CLOUD COVER CLEAR MCLEAR PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 10 10 50
TEMP (24H TREND) 87 (+2) 65 (-2) 86
RH % (24H TREND) 49 (-4) 97 (+2) 56
WIND 20FT/EARLY(MPH) E 18 E 11 E 16
WIND 20FT/LATE(MPH) E 18 E 11 E 16
MIXING HGT(FT-AGL/MSL)7500 6270
TRANSPORT WND (MPH) SE 20 E 16
VENT RATE (KT-FT) 127500 87780
DISPERSION 5 5
DSI 6 3 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ018-020645-
WEST COAST-
243 AM AST SUN MAR 1 2026
TODAY TONIGHT MON
CLOUD COVER MCLEAR CLEAR PCLDY
PRECIP TYPE SHOWERS NONE SHOWERS
CHANCE PRECIP (%) 20 0 60
TEMP (24H TREND) 88 (+2) 68 (-1) 88
RH % (24H TREND) 52 (-5) 93 (+1) 57
WIND 20FT/EARLY(MPH) SE 18 G21 E 18 E 16
WIND 20FT/LATE(MPH) SE 18 G21 E 18 E 16
MIXING HGT(FT-AGL/MSL)6060 5500
TRANSPORT WND (MPH) E 21 E 14
VENT RATE (KT-FT) 109080 66000
DISPERSION 5 5
DSI 6 4 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ019-020645-
EASTERN INTERIOR-
243 AM AST SUN MAR 1 2026
TODAY TONIGHT MON
CLOUD COVER MCLEAR PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 30 50 60
TEMP (24H TREND) 84 (+2) 66 (-3) 84
RH % (24H TREND) 56 (-6) 98 (+4) 63
WIND 20FT/EARLY(MPH) SE 17 G19 E 13 E 14
WIND 20FT/LATE(MPH) SE 17 G19 E 13 E 14
MIXING HGT(FT-AGL/MSL)6080 5430
TRANSPORT WND (MPH) SE 25 E 20
VENT RATE (KT-FT) 133760 92310
DISPERSION 5 5
DSI 6 3 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ022-020645-
LUQUILLO MOUNTAIN RANGE-
243 AM AST SUN MAR 1 2026
TODAY TONIGHT MON
CLOUD COVER MCLEAR PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 40 60 70
TEMP (24H TREND) 79 (+2) 65 (-3) 79
RH % (24H TREND) 62 (-6) 100 (+5) 68
WIND 20FT/EARLY(MPH) SE 16 G18 E 11 E 13
WIND 20FT/LATE(MPH) SE 16 G18 E 11 E 13
MIXING HGT(FT-AGL/MSL)5040 4470
TRANSPORT WND (MPH) SE 28 E 21
VENT RATE (KT-FT) 120960 80460
DISPERSION 5 5
DSI 6 4 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ023-020645-
CENTRAL MOUNTAIN RANGE-
243 AM AST SUN MAR 1 2026
TODAY TONIGHT MON
CLOUD COVER CLEAR MCLEAR PCLDY
PRECIP TYPE SHOWERS NONE SHOWERS
CHANCE PRECIP (%) 10 0 50
TEMP (24H TREND) 84 (+5) 62 (-4) 83
RH % (24H TREND) 52 (-8) 97 (+2) 58
WIND 20FT/EARLY(MPH) SE 13 E 11 E 11
WIND 20FT/LATE(MPH) SE 13 E 11 E 11
MIXING HGT(FT-AGL/MSL)7500 6840
TRANSPORT WND (MPH) E 20 E 16
VENT RATE (KT-FT) 127500 95760
DISPERSION 5 5
DSI 6 2 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ024-020645-
CAYEY MOUNTAIN RANGE-
243 AM AST SUN MAR 1 2026
TODAY TONIGHT MON
CLOUD COVER CLEAR PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 10 60 60
TEMP (24H TREND) 78 (+1) 65 (-3) 79
RH % (24H TREND) 62 (-7) 99 (+3) 70
WIND 20FT/EARLY(MPH) E 14 G17 E 11 E 12
WIND 20FT/LATE(MPH) E 14 G17 E 11 E 12
MIXING HGT(FT-AGL/MSL)5520 4770
TRANSPORT WND (MPH) E 28 E 21
VENT RATE (KT-FT) 132480 85860
DISPERSION 5 5
DSI 6 3 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ025-020645-
VIEQUES-
243 AM AST SUN MAR 1 2026
TODAY TONIGHT MON
CLOUD COVER CLEAR PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 10 60 70
TEMP (24H TREND) 85 (0) 71 (-2) 85
RH % (24H TREND) 54 (-4) 90 (+4) 59
WIND 20FT/EARLY(MPH) E 18 G22 E 16 G20 E 17 G22
WIND 20FT/LATE(MPH) E 18 G22 E 16 G20 E 17 G22
MIXING HGT(FT-AGL/MSL)3840 3860
TRANSPORT WND (MPH) E 29 E 24
VENT RATE (KT-FT) 96000 81060
DISPERSION 5 5
DSI 6 6 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ026-020645-
CULEBRA-
243 AM AST SUN MAR 1 2026
TODAY TONIGHT MON
CLOUD COVER CLEAR PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 10 60 50
TEMP (24H TREND) 86 (+1) 73 (-2) 86
RH % (24H TREND) 55 (-6) 89 (+5) 59
WIND 20FT/EARLY(MPH) E 18 G23 E 16 G20 E 17 G22
WIND 20FT/LATE(MPH) E 18 G23 E 16 G20 E 17 G22
MIXING HGT(FT-AGL/MSL)3710 4070
TRANSPORT WND (MPH) E 28 E 23
VENT RATE (KT-FT) 89040 81400
DISPERSION 5 5
DSI 6 6 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ027-020645-
SOUTHWEST COASTAL PLAINS AND MONA ISLAND-
243 AM AST SUN MAR 1 2026
TODAY TONIGHT MON
CLOUD COVER MCLEAR MCLEAR PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 20 10 60
TEMP (24H TREND) 88 (+2) 68 (-3) 88
RH % (24H TREND) 50 (-6) 89 (0) 54
WIND 20FT/EARLY(MPH) E 25 G32 E 23 G28 E 23 G28
WIND 20FT/LATE(MPH) E 25 G32 E 23 G28 E 23 G28
MIXING HGT(FT-AGL/MSL)5720 5630
TRANSPORT WND (MPH) E 29 E 22
VENT RATE (KT-FT) 143000 106970
DISPERSION 5 5
DSI 6 4 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
VIZ001-020645-
SAINT THOMAS AND SAINT JOHN-
243 AM AST SUN MAR 1 2026
TODAY TONIGHT MON
CLOUD COVER CLEAR PCLDY MCLEAR
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 10 40 30
TEMP (24H TREND) 85 (+1) 72 (-3) 85
RH % (24H TREND) 55 (-5) 89 (+7) 57
WIND 20FT/EARLY(MPH) E 18 G23 E 18 G22 E 18 G23
WIND 20FT/LATE(MPH) E 18 G23 E 18 G22 E 18 G23
MIXING HGT(FT-AGL/MSL)4120 4020
TRANSPORT WND (MPH) E 28 E 26
VENT RATE (KT-FT) 98880 92460
DISPERSION 5 5
DSI 6 6 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
VIZ002-020645-
ST CROIX-
243 AM AST SUN MAR 1 2026
TODAY TONIGHT MON
CLOUD COVER CLEAR PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 10 40 40
TEMP (24H TREND) 86 (+1) 71 (-4) 86
RH % (24H TREND) 55 (-6) 93 (+9) 59
WIND 20FT/EARLY(MPH) E 19 G23 E 16 G19 E 19 G23
WIND 20FT/LATE(MPH) E 19 G23 E 16 G19 E 19 G23
MIXING HGT(FT-AGL/MSL)4390 4860
TRANSPORT WND (MPH) E 30 E 24
VENT RATE (KT-FT) 114140 102060
DISPERSION 5 5
DSI 6 6 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
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